The wallet file only keeps your keys imported so you can perform blockchain actions. The key(s) for your account(s) is/are what you need to keep safe and backed up.
What you do with your SteemPower is up to you but the more you have the more you'll get in curation rewards from upvoting good posts so that's a consideration. And so far you have ~1 STEEM worth of SP (soon to be 2 though since you entered the mining queue again!) so 1/104th divestment weekly wouldn't amount to much.
re: @hickorysmoked above
You don't need to move or transfer anything with the cli_wallet. It's safe in your account which is controlled by your key(s). The keys can be used to log in to Steemit.com and you may go from there.
I think I understand but the vesting ones do not show in the steemit wallet, so I don't quite understand how it will benefit me. I just wanted to make sure I wasn't supposed to move it\transfer it\withdraw it before turning off the miner.